Plug Gauges | McMaster-Carr

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Plug Gauge Drivers

Plug Gauge Handles

Plug Gauges

System of Measurement

Plug Gauge Size

Gauge Measurement Type

No-Go

Size-Checking Gauge Class

Increment

Length

Material

Certificate Type

Accuracy Certificate Traceable to NIST

Calibration Certificate Traceable to NIST

Thread Size

Finish

Surface Smoothness, RMS

Thread Type

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Specifications Met

Hardness

Number of Pieces

RoHS

Compliant with Exemptions

Not Compliant

Thread Fit

Acme Class 2G

Metric Class 6H

Unified Standard Class 2B

Unified Standard Class 3B

Overall Length

REACH

Container Type

End Color

Pitch

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Handle Length

1,135 Products

Plug Gauges

Class Z Plug Gauges

Check hole diameters to a tolerance of 0.0001" or 0.0025 mm

62 products

Class X Plug Gauges

Check hole diameters to a tolerance of 0.00004" or 0.001 mm

70 products

Go/No-Go Threaded Plug Gauges with Handle

The handle gives you a good grip to quickly thread and unthread go and no-go gauges

234 products

Plug Gauges with Handle

Take go and no-go measurements with a single tool

35 products

Wear-Indicating Plug Gauges

Show wear patterns so you can tell when you need to calibrate or replace

8 products

Plug Gauge Sets

Keep multiple sizes of plug gauges on hand

200 products

Threaded Plug Gauges with Handle for Pipe Threads

Verify whether pipe fitting threads fall within tolerance

65 products

Target-Size Plug Gauge Sets

A range of sizes to check hole size and location and set micrometers

65 products

Go/No-Go Hex Plug Gauges with Handle

Confirm hex drives on socket head screws are within tolerance

37 products

Threaded Plug Gauges

Test if internal threads fall within tolerance

140 products

Ball-End Plug Gauges with Handle

The thin stem flexes to check holes and cavities even if they are bent or curved

56 products

Go/No-Go Helical Insert Threaded Plug Gauges with Handle

Check that holes tapped for helical threads are within tolerance

32 products

Go/No-Go Left-Hand Threaded Plug Gauges with Handle

Check that left-hand threads fall within tolerance

58 products

Acme Threaded Plug Gauges with Handle

Determine if parts with internal Acme threads are within tolerance

20 products

Long-Reach Plug Gauges

Measure deep holes that are hard to see and reach

34 products

Other Products

Plug Gauge Handles

Add both a go gauge and a no-go gauge to create a custom tool for checking hole diameters

12 products

Plug Gauge Drivers

Test thread tolerance in seconds to save time during high-volume work

7 products